Author
Philadelphia Historical Commission
4
Tinkcom, Margaret B. 1907-
3
Simon, Grant Miles, 1887-1967
2
Chestnut Hill Historical Society
1
Healy, Joseph W.
1
Marion, John Francis
1
Middletown Township Historical Society (Lima, Pa.)
1
National Register of Historic Places
1
National Trust for Historic Preservation in the United States
1
Philadelphia Historic Preservation Corporation
1
Potter, Leslie B.
1
Uhlfelder, Eric
1
United States. National Park Service
1
Willard S. Detweiler, Jr., inc
1